From 7d5ce994ab979cd96a21d26c6a71b16d4469144b Mon Sep 17 00:00:00 2001
From: Frank <91616163+softhack007@users.noreply.github.com>
Date: Tue, 4 Oct 2022 13:50:01 +0200
Subject: [PATCH] WLED_DEBUG: fix for crash after LittleFS formating

This fixes a "division by zero" in WLED_DEBUG code.

LittleFS init seems to take some time, so we can arrive at "Loops/sec" with 0 loops executed --> crash.
---
 wled00/wled.cpp | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/wled00/wled.cpp b/wled00/wled.cpp
index 47c0ed02..afe2095a 100644
--- a/wled00/wled.cpp
+++ b/wled00/wled.cpp
@@ -204,9 +204,11 @@ void WLED::loop()
     DEBUG_PRINT(F("State time: "));      DEBUG_PRINTLN(wifiStateChangedTime);
     DEBUG_PRINT(F("NTP last sync: "));   DEBUG_PRINTLN(ntpLastSyncTime);
     DEBUG_PRINT(F("Client IP: "));       DEBUG_PRINTLN(Network.localIP());
-    DEBUG_PRINT(F("Loops/sec: "));       DEBUG_PRINTLN(loops / 30);
-    DEBUG_PRINT(F("UM time[ms]: "));     DEBUG_PRINT(avgUsermodMillis/loops); DEBUG_PRINT("/");DEBUG_PRINTLN(maxUsermodMillis);
-    DEBUG_PRINT(F("Strip time[ms]: "));  DEBUG_PRINT(avgStripMillis/loops); DEBUG_PRINT("/"); DEBUG_PRINTLN(maxStripMillis);
+    if (loops > 0) { // avoid division by zero
+      DEBUG_PRINT(F("Loops/sec: "));       DEBUG_PRINTLN(loops / 30);
+      DEBUG_PRINT(F("UM time[ms]: "));     DEBUG_PRINT(avgUsermodMillis/loops); DEBUG_PRINT("/");DEBUG_PRINTLN(maxUsermodMillis);
+      DEBUG_PRINT(F("Strip time[ms]: "));  DEBUG_PRINT(avgStripMillis/loops); DEBUG_PRINT("/"); DEBUG_PRINTLN(maxStripMillis);
+    }
     strip.printSize();
     loops = 0;
     maxUsermodMillis = 0;